From: Vahagn Hayrapetyan <vahagnh@...>
Date: 2009-09-05T20:20:06+09:00
Subject: End of file error when trying to Marshal.load

Hi,-

I am trying out the marshaling functionality of Ruby with this
documentation as a guide:

http://www.ruby-doc.org/core/classes/Marshal.html

Code goes like this:

*****************************

class Klass
  def initialize(str)
    @str = str
  end
  def sayHello
    @str
  end
end

def marshalKlass
  o = Klass.new("hello\n")
  print o.sayHello
  Marshal.dump(o, File.open("output.txt", "w"))
  data = File.open("output.txt") # all fine up until here
  obj = Marshal.load(data) # EOFError
  print obj.sayHello
end

if __FILE__ == $PROGRAM_NAME
  marshalKlass
end

*****************************

The line:
obj = Marshal.load(data)
gives the following error:

Klass.rb:19:in `load': end of file reached (EOFError)
  from Klass.rb:19:in `marshalKlass'
  from Klass.rb:32

The line:
data = File.open("output.txt") places the cursor at the start of the
file. What's wrong?

Thanks!

/ Vahagn
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